Odpowiedź :
Odpowiedź:
s=456km=456 000m
t=4h i 26min=4*3600+26*60=15960s
v=s/t
v=456 000m/15960s
v=28,57m/s≈102,86km/h
s-456km=456.000m
t-4h 26min=4•3600+26•60=15960s
v=s/t
v=456.000m:15960s
v=28,57m/s≈102,86km/h
t-4h 26min=4•3600+26•60=15960s
v=s/t
v=456.000m:15960s
v=28,57m/s≈102,86km/h